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/*
* implement.h
*
* Implementation specific (non API) stuff.
*/
#ifndef _IMPLEMENT_H
#define _IMPLEMENT_H
#define _PTHREAD_HASH_INDEX(x) (((ULONG) x) % PTHREAD_THREADS_MAX)
#define _PTHREAD_YES 1
#define _PTHREAD_NO 0
/* Handler execution flags. */
#define _PTHREAD_HANDLER_NOEXECUTE 0
#define _PTHREAD_HANDLER_EXECUTE 1
/* Handler popping schemes. */
enum { _PTHREAD_HANDLER_POP_LIFO, _PTHREAD_HANDLER_POP_FIFO };
/* Special value to mark attribute objects as valid. */
#define _PTHREAD_ATTR_INVALID 0xC0FFEE
/* General description of a handler function on a stack. */
typedef struct _pthread_handler_node _pthread_handler_node_t;
struct _pthread_handler_node {
_pthread_handler_node_t next;
void (* routine)(void *);
void * arg;
};
/* Stores a thread call routine and argument. */
typedef struct {
unsigned (*routine)(void *);
void * arg;
jmpbuf env;
} _pthread_call_t;
/* Macro to return the address of the thread entry of the calling thread. */
#define _PTHREAD_THIS (_pthread_find_thread_entry(pthread_this()))
/* Macro to compute the address of a given handler stack. */
#define _PTHREAD_STACK(stack) \
((_pthread_handler_node_t *) &(_PTHREAD_THIS)->cleanupstack + stack);
/* Macro to compute the table index of a thread entry from it's entry
address. */
#define _PTHREAD_THREADS_TABLE_INDEX(this) \
((_pthread_threads_table_t *) this - \
(_pthread_threads_table_t *) _pthread_threads_threads_table)
/* Macro to compute the address of a per-thread mutex lock. */
#define _PTHREAD_THREAD_MUTEX(this) \
(&_pthread_threads_mutex_table[_PTHREAD_THREADS_TABLE_INDEX(this)])
/* An element in the thread table. */
typedef struct _pthread_threads_thread _pthread_threads_thread_t;
struct _pthread_threads_thread {
pthread_t thread;
pthread_attr_t attr;
_pthread_call_t call;
int cancel_pending;
int cancelstate; /* PTHREAD_CANCEL_DISABLE
PTHREAD_CANCEL_ENABLE */
int canceltype; /* PTHREAD_CANCEL_ASYNCHRONOUS
PTHREAD_CANCEL_DEFERRED */
void ** joinvalueptr;
int join_count;
/* These must be kept in this order and together. */
_pthread_handler_node_t * cleanupstack;
_pthread_handler_node_t * destructorstack;
_pthread_handler_node_t * forkpreparestack;
_pthread_handler_node_t * forkparentstack;
_pthread_handler_node_t * forkchildstack;
};
#ifdef __cplusplus
extern "C" {
#endif /* __cplusplus */
/* Generic handler push and pop routines. */
int _pthread_handler_push(int stack,
int poporder,
void (*routine)(void *),
void *arg);
void _pthread_handler_pop(int stack,
int execute);
void _pthread_handler_pop_all(int stack,
int execute);
/* Primitives to manage threads table entries. */
int _pthread_new_thread_entry(pthread_t thread,
_pthread_threads_thread_t ** entry);
_pthread_threads_thread ** _pthread_find_thread_entry(pthread_t thread);
void _pthread_delete_thread_entry(_pthread_threads_thread_t ** this);
/* Thread cleanup. */
void _pthread_vacuum(void);
#ifdef __cplusplus
}
#endif /* __cplusplus */
/* Global data declared in global.c */
extern pthread_mutex_t _pthread_count_mutex;
extern DWORD _pthread_threads_count;
extern _pthread_threads_thread_t _pthread_threads_table[];
extern pthread_mutex_t _pthread_threads_mutex_table[];
#endif /* _IMPLEMENT_H */
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